-Jui I 



INDEX. 



Page. 



Haeckel, E., descriptions of fossil medusa? by 66-67, 



71-79, 84-85, 86-87, S8-89, 93, 94, 95 



copies of figures of medusae given by 182, 



188,190,193.194 

 Hayes, C. Willard, cited on microscopic character 

 of siliceous nodules containing fossil me- 

 dusae... -. 12-13 



acknowledgments to 13 



Heluiintkoidichnites marinus, figures of 158 



Hexarhizites insignis, description of 82,86-88 



aguresof -. - 87,190 



Hinde.G. J., cited on solution of silica of sponges by 



oceanic waters - 30-21 



Iddings, Joseph P., cited on microscopic characters 

 of siliceous nodules containing fossil me- 

 dusae - 12 



Jurassic medusife, list of 2 



occurrence and character of 65-70 



descriptions of 65-95 



classification of 69-70 



Kner.R., cited on Medusites cretaceus 98 



Kijlliker, A., cited on reproduction of Discomedusse 



by lateral fission 38-39 



Lang. A., cited on Gastroblasta raffaeli 39 



copies of figures of medusa? given by 142,144 



Laotira, description of 31 



Laotira Cambria, description of 33- 1 1 



figures of 34,35,36,37,114,116,118,120,122,124,126, 



138, 130, 133, 134, 136, 138, 140, 143, 146, 148, l.M I 



Leptobrachites gigantea, description of 90-91 



Leptobrachites trigonobrachius. description of 88 89 



figures of - 89-90 



Leuckart, R., cited on Leptobrachites trigonobra- 

 chius - 89 



Linnarsson, J. G. O., cited on Agelacrinus (?) lind- 

 stromi (=Medusina eostata) 49-51 



original description of Astylospongia radiata 



(= Medusina radiata) by 56-57 



cited on Eophy ton - 59-60 



copies of figures of medusa- given by 160,168 



Marion and Saporta, cited on Eophyton 62 



Matthew,G.F.,aidby 48,100 



Medusichnites, figures of 196 



Medusichnites ( ? ) latilobatus, figure of 100 



Medusina, descriptii >n < >f 49 



Medusina atava, description of 95 96 



figure showing restoration of 96 



Medusina bicincta, description of 94 



figure of - - 194 



Medusina eircularis — 95 



Medusina eostata, description of 49-54 



agures of 160, 162. 161 



Medusina deperdita, description of . 91-93 



figures of - 92.192 



Medusina porpitina, description of 95 



figure of 192 



Medusina princeps, description of 54 "... 



figureof,-. — - 160 



Medusina quadrata, description of 93 



figureof 194 



Medusina radiata, description of 56-58 



figuresof... 58, 160 



Medusina staurophora, description of 94 



figureof.. 188 



Medusites antiquus (=Acraspedites antiquus), de- 

 scription of 75-76 



Medusites atavus (=Medusina atava), description 



of 95-96 



Page. 

 Medusitesbicinctus(=Medusina bicincta), descrip- 

 tion of 94 



Medusites eircularis (=Medusina eircularis) 95 



Medusites costatus ( = Medusina eostata), descrip- 

 tion of 19-54 



Medusites cretaceus, description of 97-98 



Medusites deperditus I Medusina deperdita), de- 

 scription of 91-93 



Medusites favosus (= Medusina princeps), descrip- 

 tion of 54-55 



Medusites helgolandicus 99 



Medusites latilobatus, description and figureof 99 



Medusites lindstromi ( = Medusina eostata ) .descrip- 

 tion of _ 49-54 



Medusites princeps (= Medusina princeps), descrip- 

 tion of 54-55 



Medusites porpitinus t Medusina porpitina), de- 

 scription of 95 



Medusites quadratus ( Medusina quadrata), de- 

 scription of.. ." 93 



Medusites radiatus (^Medusina radiata), descrip- 

 tion of 56-58 



Medusites staurophorus (= Medusina stauropho- 

 ra). description of 94 



Murray and Renard, cited on source of silica in 



oceanic waters 20 



Nathorst, A. G., cited on Lower Cambrian medusae 47-4N 

 cited on Medusites lindstromi (= Medusina eos- 

 tata) 51-52,33 



cited on Medusites favosus ( = Medusina prin- 

 ceps) 54 



description of Medusites radiatus (= Medusina 



radiata) by 57 



cited on Eophyton 60-61 



copies of figure of medusae given by.. ._ 162,164 



Nodules (siliceous) containing fossil medusae, dis- 

 covery of ix.:i 



character and occurrence of 3-4 



lithologic character of 11-13 



mode of occurrence of 13-14 



chemical character of 14 



microscopic character of 12-14 



Pabst, Wilhelm, aid by ix,96 



Palaegina gigantea (= Leptobrachites gigantea), de- 

 scription of 90-91 



Pelagidse, description of genus of 75-76 



Pelagiopsisleuckarti(= Leptobrachites trigonobra- 

 chius), description of — 88 



Permian medusae, descriptions of 95-96 



Planolites, figuresof 134,136 



Pohlig, H.,aid by ix 



Polyclonia frondosa, habits of 6 i 



Pompeckj, J. F., aid by ix 



cited on Medusites radiatus (-— Medusina radi- 

 ata) 58 



Protolyellia princeps i : Medusina princeps). de- 

 scription of -. 54-55 



Rauff, H., cited on Eophyton 61 



Rhizostomites, figures of restorations of 80-S1 



Rhizostomites admirandus, description of 76 



figures of - 184,188 



Rhizostomites lithographicus, description of 79-85 



figures of 186,188 



Saporta, G. de, cited on Eophyton... 61-62 



Schizocladium ramosum, description of process of 



fission exhibited by 40-41 



Schmidt, F. , cited on Medusina eostata 53-54 



Schuchert, Charles, aid by — ix 



